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LAN8710A-EZC 데이터시트(PDF) 68 Page - SMSC Corporation |
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LAN8710A-EZC 데이터시트(HTML) 68 Page - SMSC Corporation |
68 / 82 page Small Footprint MII/RMII 10/100 Ethernet Transceiver with HP Auto-MDIX and flexPWR® Technology Datasheet Revision 1.4 (08-23-12) 68 SMSC LAN8710A/LAN8710Ai DATASHEET Note: Current measurements do not include power applied to the magnetics or the optional external LEDs. The Ethernet component current is typically 41mA in 100BASE-TX mode and 100mA in 10BASE-T mode, independent of the 2.5V or 3.3V supply rail of the transformer. Note 5.6 Calculated with full flexPWR features activated: VDDIO=1.8V & internal regulator disabled. 5.4 DC Specifications Table 5.2 details the non-variable I/O buffer characteristics. These buffer types do not support variable voltage operation. Table 5.3 details the variable voltage I/O buffer characteristics. Typical values are provided for 1.8V, 2.5V, and 3.3V VDDIO cases. Note 5.7 This specification applies to all inputs and tri-stated bi-directional pins. Internal pull-down and pull-up resistors add +/- 50uA per-pin (typical). Note 5.8 XTAL1/CLKIN can optionally be driven from a 25MHz single-ended clock oscillator. Table 5.2 Non-Variable I/O Buffer Characteristics PARAMETER SYMBOL MIN TYP MAX UNITS NOTES IS Type Input Buffer Low Input Level High Input Level Negative-Going Threshold Positive-Going Threshold Schmitt Trigger Hysteresis (VIHT - VILT) Input Leakage (VIN = VSS or VDDIO) Input Capacitance VILI VIHI VILT VIHT VHYS IIH CIN -0.3 1.01 1.39 336 -10 1.19 1.59 399 3.6 1.39 1.79 459 10 2 V V V V mV uA pF Schmitt trigger Schmitt trigger Note 5.7 O12 Type Buffers Low Output Level High Output Level VOL VOH VDD2A - 0.4 0.4 V V IOL = 12mA IOH = -12mA ICLK Type Buffer (XTAL1 Input) Low Input Level High Input Level VILI VIHI -0.3 1.4 0.35 VDD2A + 0.4 V V Note 5.8 |
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